US4227847A - Apparatus for loading ovens for the production of tiles - Google Patents

Apparatus for loading ovens for the production of tiles Download PDF

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Publication number
US4227847A
US4227847A US05/929,293 US92929378A US4227847A US 4227847 A US4227847 A US 4227847A US 92929378 A US92929378 A US 92929378A US 4227847 A US4227847 A US 4227847A
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US
United States
Prior art keywords
tiles
support member
file
movable support
tile
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US05/929,293
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English (en)
Inventor
Renato Bossetti
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Societa Impianti Termoelettrici Industriali SAS
Original Assignee
Societa Impianti Termoelettrici Industriali SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Societa Impianti Termoelettrici Industriali SAS filed Critical Societa Impianti Termoelettrici Industriali SAS
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Publication of US4227847A publication Critical patent/US4227847A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/0021—Charging; Discharging; Manipulation of charge of ceramic ware
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
    • B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
    • B65G47/82—Rotary or reciprocating members for direct action on articles or materials, e.g. pushers, rakes, shovels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D2003/0001—Positioning the charge
    • F27D2003/0003—Positioning the charge involving a system for aligning the articles through a lateral guidance, e.g. funnel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D2003/0034—Means for moving, conveying, transporting the charge in the furnace or in the charging facilities
    • F27D2003/0042—Means for moving, conveying, transporting the charge in the furnace or in the charging facilities comprising roller trains
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D2003/0034—Means for moving, conveying, transporting the charge in the furnace or in the charging facilities
    • F27D2003/0063—Means for moving, conveying, transporting the charge in the furnace or in the charging facilities comprising endless belts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D2003/0034—Means for moving, conveying, transporting the charge in the furnace or in the charging facilities
    • F27D2003/0065—Lifts, e.g. containing the bucket elevators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/04—Ram or pusher apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27M—INDEXING SCHEME RELATING TO ASPECTS OF THE CHARGES OR FURNACES, KILNS, OVENS OR RETORTS
    • F27M2001/00—Composition, conformation or state of the charge
    • F27M2001/15—Composition, conformation or state of the charge characterised by the form of the articles
    • F27M2001/1504—Ceramic articles
    • F27M2001/1508—Articles of relatively small dimensions
    • F27M2001/1517—Tiles

Definitions

  • the present invention relates to a device for loading tiles into treatment and firing ovens, particularly ovens constituted by elongated processing chambers along which the tiles are caused to travel by supporting and forwarding devices, especially rollers.
  • An oven of such a type has been described in copending application Ser. No. 835,013 filed on Sept. 20, 1977, now U.S. Pat. No. 4,154,576, to which reference is made purely for illustrative purposes but without intending to limit thereby the invention and its application to ovens such as described and claimed in such application of the same applicant.
  • the invention is particularly applicable to ovens having a plurality of superimposed channels,--such as those described in the aforesaid and in other applications,--or possibly having channels set side by side or superimposed and side-by-side channels. But since the tiles travel independently in each of the channels and must be independently loaded into each one of them, the apparatus and devices according to the invention will be described essentially with reference to a single tile treatment and firing channel or plane, it being clear that they may be repeated for any number of treatment and firing channels or planes or chambers.
  • the apparatus which forms an object of the invention is characterized in that it comprises, in combination with each tile treatment and firing chamber along which the tiles travel parallel to the longitudinal axis of the chamber with a linear processing speed, a device for feeding the tiles, means for forming in such device a file of tiles to be concurrently loaded into the oven, means for taking up from such feeding device the tile file, and means for forwarding the tiles in the direction of the oven and for transferring the tiles onto a terminal conveyor which conveys the tiles all the way to the oven inlet and introduces them thereinto.
  • the means for taking up the tile file from the feeding device are constituted by a support member which is vertically displaceable from a lower to a higher position and adapted to engage the tiles at the bottom thereof and to raise them above the feeding device during its passage from the lower to the higher position.
  • the means for taking up the tiles from the feeding device and forwarding them in the direction of the oven comprises a thruster element which is actuatable parallel to the direction of loading which corresponds to the direction of the travel of the tiles in the oven, and which is adapted to engage the file of tiles which has formed on the feeding device and which has passed therefrom onto the take-up device and to forward it in the direction of the oven.
  • the apparatus is provided with a static support device which is, adapted to receive the tile file engaged by the aforesaid thruster and to contribute to support the tiles in an intermediate phase of their forward displacement towards the terminal conveyor which conveys the tiles to the oven inlet.
  • the terminal conveyor device is constituted by a plurality of rollers having their axes perpendicular to the direction of travel of the tiles and actuated to advance the tiles at the same speed and in the same direction which they have inside the oven.
  • the feeding device is constituted by two belts so spaced as to support the tiles at their two sides and to leave therebetween a gap sufficient for the passage of the take-up device which moves the tiles by raising them and disengaging them from the belts.
  • the upward motion of the take-up member for taking up the tiles and its subsequent return to the lowermost position, and the motion of the thruster in the direction of the oven for causing the tiles to pass from the take-up member to the static support device and to the terminal conveyor device, and its subsequent return to the inactive position are controlled by a photoelectric cell which detects the stoppage of the last tile of the tile file to be loaded, when the file is complete.
  • the aforesaid motions are so synchronized that the motions of the take-up member and of the thruster element are sufficiently fast to allow an uninterrupted motion of the feeding device, so that the tile take-up operation and the displacement of the tiles beyond the take-up device and the return of the take-up device and of the thruster to their inactive positions, occur within a time interval that is sufficiently short so as not to interfere with the continuous feed of the tiles onto the feeding device.
  • FIG. 1 illustrates in horizontal cross-section a loading device according to the invention, applied to one plane of an oven
  • FIG. 2 illustrates the device of FIG. 1 in vertical cross-section taken on plane II--II of FIG. 1;
  • FIG. 3 illustrates the same device in a vertical cross-section perpendicular to that of FIG. 2 and taken on plane III--III of FIG. 1;
  • FIG. 4 is a detail of FIG. 2 on an enlarged scale, showing the take-up member in its lowered position.
  • numeral 10 designates a general frame of the loading device which may have any suitable structure and of which only the part relative to a generic intermediate plane of a multiple plane oven is shown--it being clear that nothing would change if the plane shown were the uppermost or the lowermost or even the only plane.
  • the tiles are conveyed by the belts 12 which constitute the feeding device 11 and which are driven by pulleys 22 which are conveniently actuated, until the tiles reach the zone in which a take-up member is located, such member being constituted by the bed generally indicated at 23 which is mobile alternately from an inactive lower position illustrated in FIG. 4 to a higher takeup position shown in FIG. 2.
  • the bed 23 is in the lowered position and consequently the tiles 20 forwarded by the belts 12 can slide therealong all the way to a position in which the first tile is stopped by the stop member 19, which is indicated in FIG. 1 and which is omitted for reasons of simplicity of illustration in the other figures.
  • the bed 23 comprises a plurality of alternating projections 25 and recesses 26, which need not necessarily have all the same width, the function whereof will be understood later on, and it bears on a support 27 through which it may be displaced upwards and downwards by a cam 28 actuated by means not illustrated in the drawings but symbolized by an interrupted transmission belt 29.
  • a photoelectric cell 18 is located at a convenient position above the bed and is adapted to monitor the passage of the tiles, cell 18 being preferably a cell which operates by reflection within a suitable distance range.
  • the photocell does not send any signal to the mechanisms.
  • the photocell receives the optical signal for a period of time greater than the predetermined one and reacts by ordering the start of the cycle that will be described, by means of conventional electrical means which a person skilled in the art can easily design and which therefore need not be described herein.
  • the bed 23 is actuated by the cam 28 through the support 27 and rises to the take-up position shown in FIG. 2 and consequently lifts the tiles and disengages them from the belts 12.
  • a thruster generally indicated at 30 is actuated to move in the direction of the oven.
  • the thruster is carried by a rod 31 actuated in any desired way, e.g. by a hydraulic or pneumatic cylinder 32, and slides laterally on guides 33 (FIG. 3) and carries, as the active portion, hooked fingers 34 which are arranged in such a way that they may pass in the recesses 26 of the bed 23 without interfering with the projections 25 thereof.
  • the fingers 34 of the thruster 30 engage the tiles and thrust them towards the oven, i.e. to the right as shown in FIGS. 1 or 2.
  • the tiles are transferred onto a support device constituted by the fixed bed generally indicated at 35 and which is constituted in a manner analogous to the bed 23, is correspondingly provided with projections and recesses, but is static and always remains at the level shown in FIG. 2, i.e. at the level at which it is adapted to receive the tiles and to contribute in supporting them in their passage from bed 23 to the terminal conveyor hereinafter to be discussed.
  • the bed 23 may move back downwards to the position shown in FIG. 4.
  • the thruster 30 has returned to its inactive position.
  • the device is so synchronized, however, that the interval between two tiles is sufficient to allow the entire cycle hereinbefore described of upwardly and downwardly motions of the bed 23 and to and fro motions of the thruster 30 to be completed in the interval between the arrival of a tile and the arrival of the next one, so that when the bed and the thruster have returned to their inactive positions, the first tile of a new group arrives and the operation begins once more.
  • the tiles 20 have passed to the terminal conveyor 14, constituted by rollers 15 having a cylindrical or,--at least some of them,--grooved surface, actuated to move the tiles forward in the direction of the arrow 17 towards the oven inlet, which is located immediately downstream (to the right as shown in FIG. 1) of the described apparatus, and preferably at the same speed of travel which the tiles will have in the oven.
  • a given apparatus is adapted to load tiles of different dimensions, and to this end the projections 25 and the recesses 26 of the bed 23 and of the static support device 35, which are not equal to one another as seen in the figures, are suitably calculated to permit such operational flexibility.
  • the precise dimensions may be easily determined in each instance by a person skilled in the art, and if needed, the corresponding different strokes of the bed can also be determined and carried into practice by means easily available to such a person.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
  • Specific Conveyance Elements (AREA)
  • Attitude Control For Articles On Conveyors (AREA)
  • Tunnel Furnaces (AREA)
US05/929,293 1977-07-28 1978-07-28 Apparatus for loading ovens for the production of tiles Expired - Lifetime US4227847A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT26235/77A IT1077433B (it) 1977-07-28 1977-07-28 Apparecchiatura per il caridamneto di forni per la produzione di piastrelle
IT26235A/77 1977-07-28

Publications (1)

Publication Number Publication Date
US4227847A true US4227847A (en) 1980-10-14

Family

ID=11219017

Family Applications (1)

Application Number Title Priority Date Filing Date
US05/929,293 Expired - Lifetime US4227847A (en) 1977-07-28 1978-07-28 Apparatus for loading ovens for the production of tiles

Country Status (7)

Country Link
US (1) US4227847A (it)
BR (1) BR7804824A (it)
DE (1) DE2833205A1 (it)
ES (1) ES472061A1 (it)
FR (1) FR2398993A1 (it)
GB (1) GB2001607A (it)
IT (1) IT1077433B (it)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4492503A (en) * 1981-01-16 1985-01-08 Builders Equipment Company High speed pusher
US4671401A (en) * 1984-12-21 1987-06-09 Paul Truninger Method of and apparatus for conveying articles

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4550551A (en) * 1983-02-09 1985-11-05 Desantis Raymond P Sagger loader and conveyor apparatus and method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2197156A (en) * 1937-09-11 1940-04-16 Mundet Cork Corp Distributing device
US2252937A (en) * 1937-08-25 1941-08-19 Fred C Link Lehr loader
US3978970A (en) * 1974-04-25 1976-09-07 Fmc Corporation Loader for containerized cooker
US4039072A (en) * 1974-08-21 1977-08-02 C. Keller & Co. Apparatus and method for conveying molded briquettes from a press to bed plates via an inclined conveyance track

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2252937A (en) * 1937-08-25 1941-08-19 Fred C Link Lehr loader
US2197156A (en) * 1937-09-11 1940-04-16 Mundet Cork Corp Distributing device
US3978970A (en) * 1974-04-25 1976-09-07 Fmc Corporation Loader for containerized cooker
US4039072A (en) * 1974-08-21 1977-08-02 C. Keller & Co. Apparatus and method for conveying molded briquettes from a press to bed plates via an inclined conveyance track

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4492503A (en) * 1981-01-16 1985-01-08 Builders Equipment Company High speed pusher
US4671401A (en) * 1984-12-21 1987-06-09 Paul Truninger Method of and apparatus for conveying articles

Also Published As

Publication number Publication date
BR7804824A (pt) 1979-03-06
IT1077433B (it) 1985-05-04
GB2001607A (en) 1979-02-07
ES472061A1 (es) 1979-02-16
FR2398993A1 (fr) 1979-02-23
DE2833205A1 (de) 1979-02-08

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